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QUESTION 3 [20 MARKS] Table 2: XYZ Project Activity Pessimistic Most Likely Optimistic Predecessor A 5 3 B 9 6 C 18 12 D 12 A E 8 A F 16 E G 13 B, E H 9 D C, G (a) Table 2 indicates three different values for activity duration for XYZ's project. Find the answer for the following; i.) Expected duration (te) for each of the activity. [9 Marks] [CO1, PO1, C4] ii.) Determine the critical path(s). [2 Marks)] [CO1, PO1, C5] iii.) Calculate the standard deviation for the project. [1 Mark] [CO1, POI, C4] iv.) Find the project's duration to be completed within 68.2% probability and 95.4% probability. [8 Marks] [CO1, POL, CI]